﻿#region The MIT License
// The MIT License
// 
// Copyright (c) 2009 octalforty studios
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System;
using System.IO;

using NUnit.Framework;

using octalforty.Chinchillin.Shared.Deployment.Resources;
using octalforty.Chinchillin.Shared.Deployment.Resources.Impl;

using Rhino.Mocks;

namespace octalforty.Chinchillin.Tests.Shared.Deployment.Resources.Impl
{
    [TestFixture()]
    public class FileSystemResourceProviderTestFixture
    {
        [Test()]
        [ExpectedException(typeof(FileNotFoundException))]
        public void GetResourceChecksumThrowsFileNotFoundExceptionWhenFileDoesNotExist()
        {
            var mockRepository = new MockRepository();
            var fileSystemManager = mockRepository.StrictMock<IFileSystemManager>();

            using(mockRepository.Record())
                Expect.Call(fileSystemManager.FileExists(@"c:\directory\file.txt")).Return(false);

            var resourceProvider = new FileSystemResourceProvider { FileSystemManager = fileSystemManager };
            resourceProvider.GetResourceChecksum(new Uri("local:///c:/directory/file.txt"));

            mockRepository.VerifyAll();
        }

        [Test()]
        public void GetResourceChecksum()
        {
            var mockRepository = new MockRepository();

            var fileSystemManager = mockRepository.StrictMock<IFileSystemManager>();
            var stream = mockRepository.Stub<Stream>();

            using(mockRepository.Record())
            {
                Expect.Call(fileSystemManager.FileExists(@"c:\directory\file.txt")).Return(true);
                Expect.Call(fileSystemManager.OpenFile(@"c:\directory\file.txt")).Return(stream);

                var buffer = new byte[] { 0, 1, 2, 3, 4, 5 };

                stream.Stub(s => s.CanRead).Return(true);
                Expect.Call(stream.Read(null, 0, 0)).
                    Return(6).
                    IgnoreArguments().
                    WhenCalled(a => Array.Copy(buffer, (Array)a.Arguments[0], 6));
                Expect.Call(() => stream.Close());
                Expect.Call(() => ((IDisposable)stream).Dispose());
            } // using

            mockRepository.ReplayAll();

            var resourceProvider = new FileSystemResourceProvider
                {
                    FileSystemManager = fileSystemManager,
                    ChecksumProvider = new Sha1ChecksumProvider()
                };

            var checksum = resourceProvider.GetResourceChecksum(new Uri("local:///c:/directory/file.txt"));

            mockRepository.VerifyAll();
        }
    }
}
